Sofa



FIG. 1 is a perspective view of a sofa showing our new design.

FIG. 2 is a front view of the sofa of FIG. 1.

FIG. 3 is a rear view of the sofa of FIG. 1.

FIG. 4 is a first side view of the sofa of FIG. 1.

FIG. 5 is a second side view of the sofa of FIG. 1; and,

FIG. 6 is a top view of the sofa of FIG. 1.

Portions of the sofa shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a sofa, as shown and described. 